/**** 
* Classes
****/ 
// Coin class
var Coin = Container.expand(function () {
	var self = Container.call(this);
	var coinGraphics = self.attachAsset('coin', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		// Coin update logic
	};
});
// Obstacle class
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obstacleGraphics = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -5;
	self.update = function () {
		self.y += self.speed;
	};
});
//<Assets used in the game will automatically appear here>
//<Write imports for supported plugins here>
// Player class
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 10;
	self.update = function () {
		// Player update logic
	};
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000 //Init game with black background
});

/**** 
* Game Code
****/ 
// Initialize player
var background = game.addChild(LK.getAsset('background', {
	anchorX: 0,
	anchorY: 0
}));
var player = game.addChild(new Player());
player.x = 2048 / 2;
player.y = 2732 - 200;
// Arrays to hold obstacles and coins
var obstacles = [];
var coins = [];
// Score and timer
var score = 0;
var timer = 60; // 60 seconds timer
// Display score
var scoreTxt = new Text2('Score: 0', {
	size: 100,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Display timer
var timerTxt = new Text2('Time: 60', {
	size: 100,
	fill: 0xFFFFFF
});
timerTxt.anchor.set(0.5, 0);
LK.gui.topRight.addChild(timerTxt);
// Handle player movement
game.down = function (x, y, obj) {
	player.x = x;
	player.y = y;
};
// Game update loop
game.update = function () {
	// Update player
	player.update();
	// Update obstacles
	for (var i = obstacles.length - 1; i >= 0; i--) {
		var obstacle = obstacles[i];
		obstacle.update();
		if (obstacle.y < -50) {
			obstacle.destroy();
			obstacles.splice(i, 1);
		}
		if (player.intersects(obstacle)) {
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
		}
	}
	// Update coins
	for (var j = coins.length - 1; j >= 0; j--) {
		var coin = coins[j];
		coin.update();
		if (coin.y < -50) {
			coin.destroy();
			coins.splice(j, 1);
		}
		if (player.intersects(coin)) {
			score += 10;
			scoreTxt.setText('Score: ' + score);
			coin.destroy();
			coins.splice(j, 1);
		}
	}
	// Spawn obstacles and coins
	if (LK.ticks % 60 == 0) {
		var newObstacle = new Obstacle();
		newObstacle.x = Math.random() * 2048;
		newObstacle.y = 2732;
		obstacles.push(newObstacle);
		game.addChild(newObstacle);
		var newCoin = new Coin();
		newCoin.x = Math.random() * 2048;
		newCoin.y = 2732;
		coins.push(newCoin);
		game.addChild(newCoin);
	}
	// Update timer
	if (LK.ticks % 60 == 0) {
		timer--;
		timerTxt.setText('Time: ' + timer);
		if (timer <= 0) {
			LK.showGameOver();
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -49,8 +49,12 @@
 /**** 
 * Game Code
 ****/ 
 // Initialize player
+var background = game.addChild(LK.getAsset('background', {
+	anchorX: 0,
+	anchorY: 0
+}));
 var player = game.addChild(new Player());
 player.x = 2048 / 2;
 player.y = 2732 - 200;
 // Arrays to hold obstacles and coins